Affiliation:
1. Charles Darwin Research Station, Charles Darwin Foundation Galapagos Islands Ecuador
2. Guy Harvey Research Institute and Save Our Seas Foundation Shark Research Center Nova Southeastern University Dania Beach Florida USA
3. Galapagos National Park Directorate Galapagos Islands Ecuador
Abstract
AbstractDespite being a heavily fished species, little is known about the movements of silky sharks (Carcharhinus falciformis). In this study, we report the longest (in duration and distance traveled) and most spatially extensive recorded migration for a silky shark. This shark, tagged with a fin‐mount satellite transmitter at the Galapagos Islands, traveled >27,666 km over 546 days, making two westerly migrations into international waters as far as 4755 km from the tagging location. These extensive movements in an area with high international fishing effort highlights the importance of understanding silky shark migrations to inform management practices.
Reference35 articles.
1. Residency and movement patterns of an apex predatory shark (Galeocerdo cuvier) at the Galapagos Marine Reserve
2. Massive Chinese fleet jeopardizes threatened shark species around the Galápagos marine reserve and waters off Ecuador: Implications for national and international fisheries policy;Alava J.;International Journal of Fisheries Science and Research,2017
3. Amandè M. Chassot E. Chavance P. &Pianet R.(2008).Silky shark (Carcharhinus falciformis) bycatch in the French tuna purse‐seine fishery of the Indian Ocean.IOTC Proceedings IOTC‐2008‐WPEB‐16: 22p.
4. Interactions of tuna fisheries with the Galápagos marine reserve
5. The Biology and Ecology of the Silky Shark,Carcharhinus Falciformis